MoerDuo Manually Switch Sampling Rate
Switch Sampling Rates with Ease
MoerDuo™ Auracast™ Transmitter · Firmware V3.7.1+
Enjoy faster, more intuitive audio control. With firmware V3.7.1 or later, you can switch the sampling rate directly on the device without using a computer tool.

New Feature
Switch between 24 kHz and 48 kHz with a simple button operation to quickly adjust the device to your listening needs.
How to Switch
- Switch MoerDuo™ to Auracast™ mode.
- Click the Power button once and release it, then press the same button again and hold.
- Check the purple LED to confirm the selected sampling rate.
LED Feedback
The purple LED indicates the selected sampling rate:
Purple LED Flashes quickly 3 times
Purple LED Stays on for 1–2 seconds
Firmware Update Methods
You can update MoerDuo™ firmware in either of the following ways. Switch the device to the required mode before updating.
1. MoerLab Device Manager
Switch MoerDuo™ to TX (transmitter) mode, then use MoerLab Device Manager on your computer to update the firmware.
2. MoerLab Audio App
Switch MoerDuo™ to RX (receiver) mode, then use the MoerLab Audio App on your smartphone to update the firmware.